Gas burning heater



Oct. 25, 1932. c. L. KLINE ET AL, GAS BURNING HEATER Filed May 31, 1930000000000 oooooooooooooo 'o o o o 001' Patented Oct. 25, 1932 UNITEDSTATES PATENT OFFIO CHARLES L. KLINE AND HENRY B. HARRINGTON, OFBUFFALO, NEIV YORK, ASSIGNORS 'IO EMILIE F. HARRINGTON, OF BUFFALO, NEWYORK GAS BURNING HEATER Application filed May 31,

This invention relates generally to improvements in gas burning heaterssuch as are used in homes.

Its chief object is to so design the heater that the poisonous carbonmonoxide gases emitted from the products of combustion are decomposed orreduced to a non-poisonous and harmless gas.

Another ob] ect of the invention is the provision of a flueless heaterof this character which is simple and inexpensive in construction andefficient in operation, and whose parts are so organized and arranged asto afford an effective circulation of the air and products of combustionto derive a maximum of heat radiation.

In the accompanying drawing Figure 1 is a face view of a gas heaterconstructed in accordance with my invention. Figure 2 is an enlargedtransverse vertical section thereof. Figure 3 is a sectional view,similarto Figure 2, showing a slightly modified form of the invention.

Similar characters of reference indicate corresponding parts throughoutthe several views.

While our invention is applicable to various heating devices from whichtoxic carbon monoxide gas escapes, it has been shown, by way of example,in connection with a domestic, radiant or open front type of gas heaterincluding a suitable frame 10, a burner 11 and incandescent or radianttubes 12 disposed vertically over the burner-jets. Extending along therear sides of the radiant tubes is a vertically-disposel refractory wall13 which preferably terminates at its upper endand over the tubes in aforwardly and downwardly facing extension or deflector 14. An outlet oropening 15 is formed adjacent the upper end of this wall for thedischarge of the products of combustion emitted from the burner.

Disposed at the rear side of the heater in spaced relation to therefractory wall 13 is a second wall 16 which forms with the latter anair intake passage or chamber 17 for introducing atmospheric air intointimate relation with the products of combustion escaping from theburner. This second wall is 1930. Serial No. 458,858.

preferably inclined toward the refractory wall, in the manner shown inFigure 2, to provide an upwardly converging air passage which results inan increased velocity of the air as it travels through said passage.Adjacent its upper end and opposite the outlet 15 in the refractoryWall, the second wall 16 has an outlet 18 through which both theproducts of combustion and atmospheric air are adapted to escape. Inaddition to the air admitted through the passage 17 a secondary supplyis also admitted over the upper ends of the radiant tubes 12 anddirected into the upper portion of said passage by the refractory wallextension 14.

A flue or conduit 19 extends from the rear wall 16 for receiving theproducts of combustion and air discharged from the outlet 18 therein.This conduit contains a catalyzing agent which may be in the form ofscreens 20 disposed in spaced relation and made of copper or othercatalytic material. As shown from the burners are discharged into theconduit 19 into intimate contact with the catalyzing agent, which, inthe presence of the oxygen of the air drawn through the air intakepassage 17 effectively promotes a union of the carbon monoxide, presentin the combustion products, and oxygen to form the relatively harmlesscarbon dioxide gas, thereby eliminating the present dangers coincidentwith the use of domestic gas heaters and similar heating apparatus.fective circulation of warm air is provided for by the passage 17 andconduit 19 and a maximum of heat radiation is obtained.

We claim as our invention 1. In a gas heater of the characterclescribed, the combination of a wall applied to the rear side of theheater in spaced relation thereto to provide an air intake passageextending upwardly alongside and behind the heater elements and providedadjacent its Furthermore, an efupper end with an outlet for thedischarge of air admitted to said passage and the products of combustionemitted from the heater, and a conduit containing a catalyst applied tosaid wall and in communication with said passage outlet. a v

2. In a gas heater ofthe'character described, the combination of a wallapplied to the rear side of the heater in spaced relation thereto toprovide an upwardly tapering air intake passage extending alongside andbehind the heater elements, and a conduit containing a catalystprojecting "outwardly from said wall and in communication at its inletend with said air intake passage and at its outlet end with theatmosphere,the productsof combustion emitted. fromthe heater and theoxygen of the air admitted through said passage being discharged throughsaid conduit to intimately contact with the catalyst therein and reducethepoisonous gases contained in products'of combustion to non-poisonousgases.

3. In a gas heater of the character described, the combination of a wallapplied to the rear side of the heater'in spaced relation. thereto toprovide an upwardly tapering air intake passage extending alongside andbehind the heater elements, and a conduit containing a catalystprojecting outwardly from said wall and in communication at its inletend with said airintake passage and at wardly facing deflector extendingover the upper ends of said tubes, a second wall spaced from saidrefractory wall'to form an air intake passage and having an outlettherein substantially opposite said refractory wall outlet, and aconduit containing a catalyst in communication with the outlet of saidsecond wall and through which the air introduced through said intakepassage and the products of combustion emitted from the'heater areadapted to travel.

CHARLES L. KLINE.

HENRY B. HARRINGTON.

its outlet end with the atmosphere, the products of combustion emittedfrom the heater and the oxygen of theair' admitted through.

said passage being discharged through said conduit to intimately contactwith the catalyst thereinand reduce the poisonous gases,

contained in the products of combustion t0 non-poisonous gases, theconduit including a forwardly-facing portlon for directing thenon-poisonous gases into the atmosphereim- I air intake passageadjoining said burnertubes and terminating at its upper end beyond thecorresponding ends of said tubes, and a discharge conduit containing acatalyst applied to said wall and in communication with said passage,whereby the products of combustion from the burner and the oxygen of theair introduced into said passage intimately contact with the catalyst insaid conduit to reduce the carbon monoxide gas present in theproducts'of combustion to carbon dioxide. 7

5. In a gas heater of the open front type, the combination of aburnerincluding incandescent t-ubes rising therefrom, a refractory walldisposed in rear of said tubes having an outlet therein for the passageofthe prod ucts of combustion, a forwardlyand down-

